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# Senior Redhat Linux Administrator

- **Company:** Intone Networks
- **Location:** Woodlawn, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Microsoft Azure, Bash Shell, BIND, Unix, Cloud Computing, Cyber Security, Continuous Integration, Domain Name System (DNS), Perl (Programming Language), VMware ESX Servers, Event Logging, Identity and Access Management, Instant Messaging Technology, Intrusion Detection and Prevention, Python (Programming Language), Kernel-Based Virtual Machine, Lightweight Directory Access Protocols (LDAP), Linux Commands, Simple Mail Transfer Protocols, OpenShift, Performance Tuning, Red Hat Enterprise Linux, Ansible, Runbook, Sendmail, Systems Architecture, Systems Integration, Virtualization Technology, YAML, Scripting, Google Cloud, System Availability, Multi-Cloud, Postfix, Git, Containerization, Kubernetes, Vcenter, Bitbucket, Oracle Cloud Infrastructure, Splunk, Ansible Tower, Jenkins, Servicenow, Plan of Action and Milestones, Vulnerability Analysis
- **Published:** July 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=ffdc7e7403b08602

## About the Role

vCenter, Horizon/VCF/Aria, Dell/EMC platforms, SAN administration, and backup/restore technologies. Produce and maintain engineering documentation, runbooks, system architecture references, and CAPRS/ServiceNow problem and change records. Participate in 24x7 on-call rotations, respond to incidents within required SLAs, and support weekend/off-hour maintenance windows. Required qualifications to be successful in this role: 7+ years administering RHEL 7/8/9+ including installation, configuration, optimization, security hardening, and backup/recovery. 7+ years troubleshooting performance issues (CPU, memory, I/O, networking). 5+ years supporting virtualized environments (VMware ESXi/vCenter/VCF/Aria, KVM). 5+ years developing automation using Ansible, Ansible Tower/AAP, Bash, Python, or Perl. Expertise in Linux command-line operations and enterprise-level troubleshooting. Strong communication and documentation skills. 5 years of experience working Virtual Platforms 5 years of experience
working with Ansible Playbooks 3 years of experience with scripting languages for automation tasks and deployments (e.g., Bash Shell and Python) Expertise in the Linux command-line environment Excellent interpersonal and communication skills 7+ years administering RHEL 7/8/9+ including installation, configuration, optimization, security hardening, and backup/recovery. 7+ years troubleshooting performance issues (CPU, memory, I/O, networking). 5+ years supporting virtualized environments (VMware ESXi/vCenter/VCF/Aria, KVM). 5+ years developing automation using Ansible, Ansible Tower/AAP, Bash, Python, or Perl. Expertise in Linux command-line operations and enterprise-level troubleshooting. Strong communication and documentation skills. 5 years of experience working Virtual Platforms 5 years of experience working with Ansible Playbooks 3 years of experience with scripting languages for automation tasks and deployments (e.g., Bash Shell and Python) Expertise in the Linux command-line
environment Excellent interpersonal and communication skills Desired qualifications/non-essential skills required: Experience supporting DIS mission-critical systems. Experience with CI/CD tooling (Jenkins) and Git/Bitbucket. Federal government experience. Strong ability to operate independently and document complex processes. Experience with SAN technologies, backup/restore tools, and hybrid messaging integrations. Ability to collaborate with cross-functional technical teams. Adept at working independently, but also in a team environment Demonstrated experience delivering technology solutions in a fast-paced, deadline driven enterprise environment Excellent understanding of change management, testing requirements, techniques, and tools to ensure high availability of systems Experience developing and maintaining Red Hat Ansible Playbooks

## Description

Position Description: Senior Redhat Linux Administrator to support the client's Internet support services in Woodlawn, MD. This role provides advanced engineering, operations, and automation support across Red Hat Enterprise Linux (RHEL), multi-cloud ACI environments (AWS, Azure, GCP), container platforms (OpenShift, Kubernetes, EKS), and DIS enterprise services including Internet Messaging, DNS, and security-driven infrastructure operations. The ideal candidate brings deep expertise in RHEL, automation at scale (Ansible/Tower/AAP, Satellite), cloud infrastructure, container orchestration, and federal security compliance requirements. ***This position is located in Woodlawn, MD*** Your future duties and responsibilities: Administer, harden, and optimize Red Hat Enterprise Linux (RHEL 7/8/9+) systems for DIS operational environments. Build and maintain Ansible/Tower/AAP automation for OS configuration, patching, deployments, network/storage tasks, and cloud infrastructure provisioning.
Operate and support DIS Internet Messaging platforms (Sendmail/Postfix, SMTP Auth, LDAP sync), including YAML/Ansible-based server provisioning and Splunk log/report automation. Manage UNIX/BIND DNS zones, automate zone maintenance, integrate with AD DNS, and ensure compliance with SSA security and change-management processes. Support and operate OpenShift, Kubernetes, and Amazon EKS clusters, including deployment of OCI-compliant base images, namespace administration, and containerized application support. Provide multi-cloud ACI operations across AWS, Azure, and GCP-compute, storage, networking, AMIs, IAM, encryption, monitoring, and DR/failover design. Implement and support security operations including ATO documentation, POA&M tracking, continuous monitoring, vulnerability scanning, intrusion detection, event logging, and incident response. Maintain Red Hat Satellite for patching, inventory, and configuration compliance. Support virtualization infrastructure including VMware ESXi


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